diff options
Diffstat (limited to 'drivers/pwm/pwm-twl.c')
| -rw-r--r-- | drivers/pwm/pwm-twl.c | 62 | 
1 files changed, 54 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-twl.c b/drivers/pwm/pwm-twl.c index 203194f2c92e..86567add79db 100644 --- a/drivers/pwm/pwm-twl.c +++ b/drivers/pwm/pwm-twl.c @@ -58,9 +58,9 @@ static inline struct twl_pwm_chip *to_twl(struct pwm_chip *chip)  }  static int twl_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, -			      int duty_ns, int period_ns) +			  u64 duty_ns, u64 period_ns)  { -	int duty_cycle = DIV_ROUND_UP(duty_ns * TWL_PWM_MAX, period_ns) + 1; +	int duty_cycle = DIV64_U64_ROUND_UP(duty_ns * TWL_PWM_MAX, period_ns) + 1;  	u8 pwm_config[2] = { 1, 0 };  	int base, ret; @@ -279,19 +279,65 @@ out:  	mutex_unlock(&twl->mutex);  } +static int twl4030_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, +			     const struct pwm_state *state) +{ +	int err; + +	if (state->polarity != PWM_POLARITY_NORMAL) +		return -EINVAL; + +	if (!state->enabled) { +		if (pwm->state.enabled) +			twl4030_pwm_disable(chip, pwm); + +		return 0; +	} + +	err = twl_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); +	if (err) +		return err; + +	if (!pwm->state.enabled) +		err = twl4030_pwm_enable(chip, pwm); + +	return err; +} + +static int twl6030_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, +			     const struct pwm_state *state) +{ +	int err; + +	if (state->polarity != PWM_POLARITY_NORMAL) +		return -EINVAL; + +	if (!state->enabled) { +		if (pwm->state.enabled) +			twl6030_pwm_disable(chip, pwm); + +		return 0; +	} + +	err = twl_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); +	if (err) +		return err; + +	if (!pwm->state.enabled) +		err = twl6030_pwm_enable(chip, pwm); + +	return err; +} +  static const struct pwm_ops twl4030_pwm_ops = { -	.config = twl_pwm_config, -	.enable = twl4030_pwm_enable, -	.disable = twl4030_pwm_disable, +	.apply = twl4030_pwm_apply,  	.request = twl4030_pwm_request,  	.free = twl4030_pwm_free,  	.owner = THIS_MODULE,  };  static const struct pwm_ops twl6030_pwm_ops = { -	.config = twl_pwm_config, -	.enable = twl6030_pwm_enable, -	.disable = twl6030_pwm_disable, +	.apply = twl6030_pwm_apply,  	.owner = THIS_MODULE,  };  |